Establish AL and anterior portals. |
Maintain arthroscope in joint to assist in avoiding subchondral penetration. |
Evaluate femoral head for subchondral collapse. |
Introduce drill and reamer under radiographic guidance; lesion is typically in anterosuperior femoral head. |
Evaluate integrity of articular cartilage. |
Introduce arthroscope into socket to confirm integrity of subchondral bone at lesion site. |
Evaluate labrum and bony margin of acetabulum. |
Implant ceramic putty to provide compressive strength. |
Use interportal or T-capsulotomy to address concomitant labral and/or femoral head-neck pathology. |
Perform dynamic arthroscopy of femoral head. |